while loop : logj base 2 .. ==> log1 + log2 + ... logn = log(n!) [since logab = loga + logb] ==> O(log(n^n)) = O(nlogn)
On Sun, Oct 28, 2012 at 3:56 AM, Siddharth Malhotra <[email protected]>wrote: > Can somebody explain how it is O(n log n). > What is the significance of while loop in the above code? > > I understand that the for loop implies O(n),does the log n in the O(n log > n) comes from the while loop? > What if there where two while loops in the for loop separately? > > On Sat, Oct 27, 2012 at 3:26 AM, Pralay Biswas <[email protected] > > wrote: > >> Yes! >> >> >> On Fri, Oct 26, 2012 at 2:55 PM, rahul sharma <[email protected]>wrote: >> >>> for k=1 to n >>> { >>> j=k; >>> while(j>0) >>> j=j/2; >>> } >>> the complexity is big o is o(nlogn) >>> am i ryt???? >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Algorithm Geeks" group. >>> To post to this group, send email to [email protected]. >>> To unsubscribe from this group, send email to >>> [email protected]. >>> For more options, visit this group at >>> http://groups.google.com/group/algogeeks?hl=en. >>> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Algorithm Geeks" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/algogeeks?hl=en. >> > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
